Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for producing hydrogenated petroleum resin

Active Publication Date: 2016-11-03
IDEMITSU KOSAN CO LTD
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent discusses a device and method for removing volatile components from a reaction mixture of hydrogenated petroleum resin and a solvent. The device used for this process is a flash evaporator, which is a type of flash evaporator that uses pressure and temperature to volatilize the volatile component. The inventors found that using a preheating flash evaporator, which is a type of flash evaporator that uses a high pressure and temperature, can still effectively remove the volatile component without compromising the quality of the hydrogenated petroleum resin. By adding a particular path member in the decompression space of the preheating flash evaporator, it can perform just as well as a thin-film evaporator, a more expensive alternative. This method improves the tackiness of a tackifier resin and reduces equipment costs.

Problems solved by technology

However, since the thin-film evaporator is expensive in terms of equipment costs, another volatile-component removal device substitutable for the thin-film evaporator has been demanded.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing hydrogenated petroleum resin
  • Method for producing hydrogenated petroleum resin
  • Method for producing hydrogenated petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

embodiment (

Embodiment(s)

[0023]A manufacturing method of a hydrogenated petroleum resin includes a thermal polymerization step, a hydrogenation reaction step, and a volatile-component removal step as described below. In the exemplary embodiment, since the volatile-component removal step is conducted using a volatile-component removal device shown in FIG. 1, tackiness of a tackifier resin is improved and equipment costs are reduced.

[0024]Volatile-Component Removal Device

[0025]First, a volatile-component removal device 10 used in the exemplary embodiment will be described.

[0026]The volatile-component removal device used in the exemplary embodiment includes: a pressuring device 11 configured to pressurize a reaction mixture obtained by the hydrogenation reaction step; a heater 12 configured to heat the reaction mixture pressurized by the pressuring device 11 under pressure; a decompression unit 13 including a decompression space, a pressure of which is reduced and into which the pressurized and he...

example 1

Thermal Polymerization Step

[0067]Xylene recovered from the polymerization reaction solution was collected in a polymerization reactor provided with a stirrer and purged with nitrogen, heated to 260 degrees C., and added with stirring with a mixture of (di)cyclopentadiene (i.e., a mixture of cyclopentadiene and dicyclopentadiene) and styrene (a mass ratio of 1:1). Subsequently, the copolymerization reaction continued for 180 minutes.

[0068]After the completion of the reaction, the obtained reactant was depressurized to the pressure of 30 mHg, from which unreacted monomers and xylene were removed, so that a copolymer of (di)cyclopentadiene and styrene was obtained.

[0069]Hydrogenation Reaction Step

[0070]Ethylcyclohexane (solvent) and the copolymer obtained in the thermal polymerization step (mass ratio of 3:1) were continuously put in the hydrogenation reactor. The obtained solution was subjected to a hydrogenation reaction at the hydrogen pressure of 5.0 MPaG and the temperature in a r...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Percent by massaaaaaaaaaa
Percent by massaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

A manufacturing method of a hydrogenated petroleum resin of the invention includes: a thermal polymerization step of thermally polymerizing a cyclopentadiene compound and a vinyl aromatic compound; a hydrogenation reaction step; and a volatile-component removal step, in which the volatile-component removal step is performed using a volatile-component removal device including: a pressuring device configured to pressurize a reaction mixture; a heater configured to heat the reaction mixture pressurized by the pressuring device under pressure; a decompression unit including a decompression space, a pressure of which is reduced and into which the pressurized and heated reaction mixture is flowed; and a path member including a flow path through which the reaction mixture passes and provided in the decompression space so that the reaction mixture flowed in the decompression space of the decompression unit passes through the flow path.

Description

TECHNICAL FIELD[0001]The present invention relates to a manufacturing method of a hydrogenated petroleum resin.BACKGROUND ART[0002]A hot-melt adhesive has been increasingly used in various fields because of excellent high-speed coating property, rapid curing property, solventless property, barrier property, energy saving property, economic performance and the like. A generally usable hot-melt adhesive is exemplified by a composition containing: a base polymer such as a styrene-isoprene-styrene block copolymer and a hydride thereof; a tackifier resin; and a plasticizer. As the tackifier resin, a hydrogenated petroleum resin and the like are used. The hydrogenated petroleum resin used for the tackifier resin requires tackiness. For instance, there has been proposed a manufacturing method of a hydrogenated petroleum resin starting from a cyclopentadiene compound and a vinyl aromatic compound (start materials), where a residual amount of a low-molecular-weight component in the hydrogena...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F6/10C08F232/06C08F212/08C08F8/04C08F232/08
CPCC08F6/10C08F8/04C08F232/06C08F212/08C08F232/08C08F2800/20
Inventor MIYAMOTO, SHINJITANIMURA, HIDEKIOHKAWA, YUICHIKASHIMA, MAKOTO
Owner IDEMITSU KOSAN CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com